Stadium: Court 5 Round: 27 Ground: Clay
| ITF - M15 - Antalya | 2021/10/14 07:00 | Gergely Madarasz v Gabriel Ciro Da Silva | 7-5,6-4 |
| ITF - M15 - Antalya | 2021/10/13 11:35 | Gergely Madarasz v Marlon Vankan | 6-4,6-4 |
| ITF - M25 Budapešť | 2021/09/30 11:35 | Gergely Madarasz v Martin Krumich | 4-6,6-4,6-7 |
| ITF - M25 Budapešť | 2021/09/29 11:10 | Gergely Madarasz v Jaroslav Pospíšil | 6-4,1-6,7-5 |
| ITF - M15 Vyškovo | 2021/09/26 07:30 | Ivan Nedelko v Gergely Madarasz | 6-7,6-3,4-6 |
| ITF - M15 Vyškovo | 2021/09/25 08:00 | Gergely Madarasz v Georgii Kravchenko | 6-7,7-6,6-1 |
| ITF - M15 Vyškovo | 2021/09/24 10:00 | Yann Wojcik v Gergely Madarasz | 1-6,5-7 |
| ITF - M15 Vyškovo | 2021/09/23 13:30 | Danylo Veremeychuk v Gergely Madarasz | 2-6,0-6 |
| ITF - M15 - Antalya | 2021/10/14 08:30 | Baran Cengiz v Bogdan Ionut Apostol | 3-6,2-6 |
| ITF - M15 - Antalya | 2021/10/13 09:20 | Bogdan Ionut Apostol v Nicolae Frunza | 7-6,7-6 |
| Challenger - Napoli | 2021/10/04 08:00 | Bogdan Ionut Apostol v Petros Tsitsipas | 6-3,6-2 |
| Challenger - Napoli | 2021/10/03 10:40 | Francesco Forti v Bogdan Ionut Apostol | 6-7,7-5,3-6 |
| ITF - M15 Sozopol | 2021/09/16 08:05 | Ryan James Storrie v Bogdan Ionut Apostol | 6-3,6-1 |
| ITF - M15 Sozopol | 2021/09/14 14:00 | Yanaki Milev v Bogdan Ionut Apostol | 6-7,6-7 |
| ITF - M15 Curtea de Arges | 2021/08/10 07:00 | Bogdan Ionut Apostol v Vlad Andrei Dancu | 3-6,4-6 |
| ITF - M15 Curtea de Arges | 2021/08/09 07:00 | Bogdan Ionut Apostol v Louis Allen | 6-2,6-3 |